Analysis of energy conversion in a single-winding synchronous electromagnetic machine with two-side head running-out

Abstract

The relevance of the paper is caused by the necessity of developing impact machines with the increased energy of a unit impact at simultaneous decrease of the electric drive operation influence on a power grid. The purpose is to analyze energy conversion processes in a single-winding synchronous electromagnetic machine with head two-side free running-out. The machine operates in a cyclic mode and has high specific parameters and reduced impact frequency. Research methods: The conversion process for the total operating cycle analysis is based on the energy balance of the electromechanical system of the synchronous single-winding impact electromagnetic machine with head two-side free running-out. Results: the head free running-out operating cycles provide current amplitude decrease by impact mass acceleration with electromagnetic forces at the direct and reverse travel during two voltage pulses. Therefore, the electric drive effect on the power grid is reduced. High specific parameters and energy transmission efficiency during the operating cycles with head free running-out is provided by the effective electric energy transformation to useful mechanical work when the head electromagnetic braking is partially or completely eliminated at mechanical oscillations frequency synchronized with power frequency.

Keywords

• synchronous electromagnetic machine
• electric drive
• machine operating cycle
• electromechanical system energy balance
• impact energy
• head two-side running-out